Area and circumference of circles | Baamboozle - Baamboozle

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What's the formula for finding the circumference of a circle?

πd or 2πr

Calculate the circumference of this shape

22.0cm

Calculate the area of this shape

50.3 cm^2

Calculate the area of this shape

78.5 cm^2

Calculate the area of this shape

28.3cm^2

Calculate the circumference of this shape

18.8cm

The diameter of the window is 5 feet. What is its area?

19.634 ft^2

Calculate the circumference of this shape

31.4cm

Calculate the area and circumference of this shape

A= 63.5cm^2 and C= 28.3cm

Calculate the area and circumference of this shape

A= 50.3 cm^2 and C = 25.1 cm

The Jeep spare tire cover has a radius of 16 inches. What is the circumference of the cover?

100.53 inches

What is the approximate value often used for pi?

3.14

What is the radius of a circle when the diameter is 18 inches?

9 inches

What is the formula for finding the area of a circle?

πr^2